this is a function of the display adaptor driver
there are some key combinations that do this.. it depends on your display
adaptor chip..
If the display has been inadvertently rotated, it can normally be corrected
by pushing the key combination <Ctrl> + <Alt>+ <Up Arrow>.
see this
1.. Image rotation is enabled by default and is activated by the default
key combination <Ctrl> + <Alt> + <F1>.
a..
1.. Once it is activated, you can rotate the display with the additional
"Hot Keys":
2.. <Ctrl> + <Alt> + <Right Arrow>
a.. <Ctrl> + <Alt> + <Down Arrow>
b.. <Ctrl> + <Alt> + <Left Arrow>
c.. <Ctrl> + <Alt> + <Up Arrow>
--
50 Ways to leave your Vista....
CHORUS:
You just format the drive , Clive
Get a New Mac , Jack
Y'don't need that crap toy, Roy
Just get yourself free
Boot from a *nix, Jix
You don't need to discuss much
Install XP, Lee
And get yourself free